<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../node_modules/vue/dist/vue.js"></script>
</head>
<body>
    

    <div id="app">

        <button @click="test($event)">按钮</button>

    </div>


    <script>

        new Vue({
            el: '#app',
            methods: {
                test(event) {
                    console.log(event.target);
                }
            }
        })

    </script>

</body>
</html>